The dynamic component testing facility consists of two modular crash-test sleds, each up to two metres long and 1.3 metres in height. They stand on an 11.5-metre long rail track, so that the 'target' test sled can move backwards on impact. In the first test, DLR engineers accelerated a 1.5-metre long sled with a total mass of 1.3 tons to a maximum speed of 64 kilometres per hour. A compressed air cylinder powers the sled, and a hydraulic brake controls the acceleration.